Table 2.

NNK formation with 400 μmol/m3 NO and 55 μmol/m3 vapor-phase nicotine added to chamber at t0 (22)

Number of cigarettes smokedNO (μmol/m3)
Nicotine (μmol/m3)
NNK (nmol/m3)
0.5 h4.5 h0.0 h3.5 h0.5 h4.5 h
0351186542445
531017855282479
10294190522653120
20305149512555145
30392215512225155